Review of Sweden Yachts 41

Basic specs.

The Sweden Yachts 41 is a large sailboat designed by the Swedish maritime architect Peter Norlin together with Jens Östmann in the early eighties. The Sweden Yachts 41 is built by the Swedish yard Sweden Yachts.

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Hull

Both the hull and the deck is made of fibreglass. Generally, a hull made of fibreglass requires only a minimum of maintenance during the sailing season.
The hull is a double hull which improves the indoor climate. Especially when the water is colder than the air in the cabin, then the double hull insulates against cold water and reduce the condense water in the cabin.
The deck is a double deck which improves the indoor climate.

Interior

The interior is like many other boats made of mahogany.
The boat is equipped with 3 cabins, 6-7 berths, a galley, toilet facility and 160 liter waste water capacity.

Rig

The boat equipped with a masthead rig. The advantage of a masthead rig is its simplicity and the fact that a given sail area - compared with a fractional rig - can be carried lower and thus with less heeling moment.

Engine

The boat is typically equipped with an inboard Volvo Penta MD2003 diesel engine at 43.0 hp (32 kW), which gives a max speed about 6.5 knots.

The transmission is a saildrive.

The fuel tank which is made of stainless steel has a capacity of 200 liters (52 US gallons, 43 imperial gallons).

Sailing characteristics

This section covers widely used rules of thumb to describe the sailing characteristics. Please note that even though the calculations are correct, the interpretation of the results might not be valid for extreme boats.

Stability and Safety

What is Capsize Screening Formula (CSF)?

The capsize screening value for Sweden Yachts 41 is 1.95, indicating that this boat could - if evaluated by this formula alone - be accepted to participate in ocean races.

Theoretical Maximum Hull Speed

What is Theoretical Maximum Hull Speed?

The theoretical maximal speed of a displacement boat of this length is 7.7 knots. The term "Theoretical Maximum Hull Speed" is widely used even though a boat can sail faster. The term shall be interpreted as above the theoretical speed a great additional power is necessary for a small gain in speed.

Immersion rate

The immersion rate is defined as the weight required to sink the boat a certain level. The immersion rate for Sweden Yachts 41 is about 264 kg/cm, alternatively 1481 lbs/inch.
Meaning: if you load 264 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 1481 lbs cargo on the boat it will sink 1 inch.

Sailing statistics

This section is statistical comparison with similar boats of the same category. The basis of the following statistical computations is our unique database with more than 26,000 different boat types and 350,000 data points.

Motion Comfort Ratio

What is Motion Comfort Ratio (MCR)?

The Motion Comfort Ratio for Sweden Yachts 41 is 26.9.

Comparing this ratio with similar sailboats show that it is more comfortable than 34% of all similar sailboat designs. This comfort value is just below average.

L/B (Length Beam Ratio)

What is L/B (Length Beam Ratio)?

The l/b ratio for Sweden Yachts 41 is 3.16.

Compared with other similar sailboats it is more spacy than 66% of all other designs. It seems that the designer has chosen a slightly more spacy hull design.

D/L (Displacement Length Ratio)

What is Displacement Length Ratio?

The DL-ratio for Sweden Yachts 41 is 236 which categorizes this boat among 'light crusers & offshore racers'.

54% of all similar sailboat designs are categorized as heavier. A light displacement requires less sailarea and has higher accellerations.

SA/D (Sail Area Displacement ratio)

What is SA/D (Sail Area Displacement ratio)?

The SA/D for Sweden Yachts 41 with ISO 8666 reference sail is 18.4, with a 135% genua the SA/D is 22.1.

The SA/D ratio indicates that it is faster than 62% of all similar sailboat designs in light wind.

RSP (Relative Speed Performance)

What is Relative Speed Performance?

The Relative Speed Performance for Sweden Yachts 41 is 66

The relative speed performance is 66 which means that a it is faster than 66% of all similar sailboat designs.

Maintenance

Rig

Dimensions of sail for masthead rig.

Are your sails worn out? You might find your next sail here: Sails for Sale

If you need to renew parts of your running rig and is not quite sure of the dimensions, you may find the estimates computed below useful.

**Guiding dimensions of running rig**
Usage	Length		Diameter
Mainsail halyard	38.4 m	(126.1 feet)	12 mm	(1/2 inch)
Jib/genoa halyard	38.4 m	(126.1 feet)	12 mm	(1/2 inch)
Spinnaker halyard	38.4 m	(126.1 feet)	12 mm	(1/2 inch)
Jib sheet	12.5 m	(41.0 feet)	14 mm	(0.55 inch)
Genoa sheet	12.5 m	(41.0 feet)	14 mm	(0.55 inch)
Mainsheet	31.2 m	(102.5 feet)	14 mm	(0.55 inch)
Spinnaker sheet	27.5 m	(90.2 feet)	14 mm	(0.55 inch)
Cunningham	4.2 m	(13.9 feet)	12 mm	(1/2 inch)
Kickingstrap	8.5 m	(27.9 feet)	12 mm	(1/2 inch)
Clew-outhaul	8.5 m	(27.9 feet)	12 mm	(1/2 inch)

Boat owner's ideas

This section is reserved boat owner's changes, improvements, etc. Here you might find (or contribute with) inspiration for your boat.

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Finally

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If you have any comments to the review, improvement suggestions, or the like, feel free to contact us. Criticism helps us to improve.

References

[Ref 1]: ISO 8666 Small craft — Principal data.
[Ref 3]: ISO 12215-5 Small craft — Hull construction and scantlings.